在Pseudomonas中对绿光敏感的工程异质基因表达
Angeles Hueso-Gil1,2, Belén Calles1, Víctor de Lorenzo3
1Systems Biology Department, Centro Nacional de Biotecnología (CNB-CSIC), Madrid, Spain.
Methods in molecular biology (Clifton, N.J.)
|October 11, 2023
概括
本研究引入了使用CcaSR系统对细菌生物膜形成的光遗传控制. 这种光感应方法提供了一个更清洁,更便宜的替代化学感应工程细菌特性.
科学领域:
- 合成生物学 合成生物学
- 微生物工程 微生物工程
- 视觉遗传学 视觉遗传学
背景情况:
- 精确控制细菌基因表达对于工程应用至关重要.
- 化学诱导剂可以留下残留化合物,使生物系统复杂化.
- 光感应系统为控制细胞功能提供了更清洁的替代方案.
研究的目的:
- 用光遗传学来设计 Pseudomonas putida 生物膜的形成.
- 调整蓝菌CcaSR双组件系统以用于光控制的基因表达.
- 提供一种方法,可以在没有化学添加剂的情况下精确地打开/关闭细菌功能.
主要方法:
- 利用CcaSR双组件系统进行光介导的转录控制.
- 在CcaSR系统调节下放置了 diguanylate cyclase PleD 的表达.
- 应用光遗传控制来诱导Pseudomonas putida中的生物膜形成.
主要成果:
- 使用光作为唯一触发器成功诱导生物膜的形成.
- 通过CcaSR系统证明精确的启/关基因表达控制.
- 在不需要化学诱导剂的情况下实现调节.
结论:
- 通过CcaSR系统进行光遗传控制,可以有效地诱导生物膜的形成.
- 与化学诱导相比,这种基于光的方法提供了一种更清洁,更具成本效益的方法.
- 通过精确的遗传调节,可以更好地利用有益的生物膜特征.
更多相关视频
08:00Author Spotlight: Optimized Transformation Protocol for Chlorella vulgaris Using Agrobacterium tumefaciens
Published on: October 27, 2023
3.5K
11:31Establishment of a High-throughput Setup for Screening Small Molecules That Modulate c-di-GMP Signaling in Pseudomonas aeruginosa
Published on: June 30, 2016
8.6K
相关概念视频
02:11Reporter Genes
11.4K
Reporter genes are a type of protein-coding gene that are often tagged to a gene of interest. Once inside a target cell, reporter genes usually produce visually identifiable characteristics like fluorescence and luminescence when expressed along with the gene of interest. Thus, reporter genes “report” the presence or absence of genes of interest in an organism, determine the gene expression pattern, or track the physical location of a DNA segment or protein in the cell.
11.4K
01:28Gene Regulation in Microbial Communities: Quorum Sensing
23
Quorum sensing is a mechanism of bacterial communication that enables coordinated gene expression in response to changes in population density. This facilitates collective behaviors that enhance survival, resource acquisition, and ecological adaptation. This process relies on small signaling molecules called autoinducers that accumulate as bacterial populations grow. When a critical threshold concentration of autoinducers is reached, bacterial cells collectively modify gene expression,...
23